Sen. Mark Dayton, D-Minn., charged Friday that the Federal Aviation Administration (FAA) and the North American Aerospace Defense Command (NORAD) have covered up catastrophic failures" that left the nation vulnerable during the Sept. 11 hijackings. "For almost three years now, NORAD officials and FAA officials have been able to hide their critical failures that left this country defenseless during two of the worst hours in our history," Dayton declared during a Senate Governmental Affairs Committee hearing. Dayton told leaders of the Sept. 11 commission, that, based on the commission's report, a NORAD chronology ... said the FAA notified the military's emergency air command of three of the hijackings while those jetliners were still airborne. Dayton cited commission findings that the FAA failed to inform NORAD about three of the planes until after they had crashed. Dayton said NORAD officials "lied to the American people, they lied to Congress and they lied to your 9/11 commission to create a false impression of competence, communication and protection of the American people." He [said] if the commission's report is correct, President Bush "should fire whoever at FAA, at NORAD ... betrayed their public trust by not telling us the truth." Dayton argued that if the FAA had promptly sent a systemwide message about the hijackings, the pilot of the fourth plane seized, United Airlines Flight 93, might have been able to secure the cockpit doors and land the plane. Dayton said NORAD also falsely claimed that during the hijackings, it had F-16 Combat Air Patrol planes in place at Langley Air Force Base in Virginia and an AWAC command ship in the air to protect the nation's capital.